Basic question regarding using a seperate adapter class:

Code doesnt compile.  What argument do I use with the eventAdapter class to
make the parent class ie the MenuDialog2 class that extneds JFrame bring up
the appropriate OptionPane.

'this' doesnt compile b/c the EvenAdapter class cant bring up the
JOptionPane.

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;

public class MenuDialog2 extends JFrame  {
    JMenuItem message = new JMenuItem("message");
    JMenuItem plain = new JMenuItem("plain");
    JMenuItem error = new JMenuItem("error");
    JMenuItem info = new JMenuItem("info");
    JMenuItem question = new JMenuItem("question");
       
    JOptionPane jp = new JOptionPane(); //global component
   
    //seperate adapter class for events
    EventAdapter adapter = new EventAdapter();
   
    Color color = Color.black;
    DrawOn canvas = new DrawOn();
   
    public MenuDialog2(String title){
      super(title);   
      Container c = getContentPane();
      c.add(canvas);
      JMenuBar bar = new JMenuBar();
      setJMenuBar(bar);
   
      JMenu dialogMenu = new JMenu("Dialog");
      bar.add(dialogMenu);
      dialogMenu.add(message);
      dialogMenu.addSeparator();
   
      dialogMenu.add(plain); dialogMenu.add(error); dialogMenu.add(info);
      dialogMenu.add(question);   dialogMenu.add(warning);
   
      //add event listeners
      message.addActionListener(adapter);
      plain.addActionListener(adapter);   
      error.addActionListener(adapter);   
      info.addActionListener(adapter);   
      question.addActionListener(adapter);     
    }   
   
    //application panel
    class DrawOn extends JPanel {
        public void paintComponent(Graphics g) {
            super.paintComponent(g);
            Color oldColor = g.getColor();
            g.setColor(color);
            g.setFont(new Font("Serif", Font.BOLD, 24));
            g.drawString("Have a good day", 50,100);
            g.setColor(oldColor);
        }       
    }
   
    //seperate adapter class
    class EventAdapter implements ActionListener {
        //must implement actionPerformed
        public void actionPerformed(ActionEvent event) {
        String command = event.getActionCommand();
           if (command.equals("message")) {

     //compiler error here:

             jp.showMessageDialog( ??????,  "Your message goes here" );   
         } else if (command.equals("plain")) {
             jp.showMessageDialog(????, "Very Plain Message" , "Plain Msg",
             JOptionPane.PLAIN_MESSAGE);
         } else if (command.equals("error")) {
             jp.showMessageDialog(this, "Made an Error", "Erro Msg",
             JOptionPane.ERROR_MESSAGE);
         } else if (command.equals("info")) {
             jp.showMessageDialog(this, "Information", "Some
             info",JOptionPane.INFORMATION_MESSAGE);
           } else if (command.equals("question")) {
             jp.showMessageDialog(this, "Question" ,"????" ,
             JOptionPane.QUESTION_MESSAGE);
         }
      }       
    }   
   
    public static void main(String[] args) {
        MenuDialog2 f = new MenuDialog2("Dialog Test");
        f.setSize(300, 200);  f.setVisible(true);
    }   
}